OP, As a new grower I would start by using Florinova Grow and Florinova Bloom. Florinova Grow will serve as your vegetative phase nutrient solution. Florinova bloom will be for your flowering phase. They are an all in one solution that will yield you very good results without having to figure out what does what to your plant. Once you're more familiar with how individual amendments affect your plants you can use them to more accurately boost your harvest at the right time they are needed. Some will say there are better.....and there are but Cannabis Cups have been won using only Florinova Grow and Bloom which should tell you something about the importance of technique and growing skill over the newest fertilizer everyone's freaking out over!
I still use it regardless of having used pretty much all the boutique nutes that have come out over the years. I always seem to come back to Florinova. Maybe it's a sign I need to improve my grow chops?!?
I typically amend my nutrient solutions with some
Hormex, Pro tekt Silicate and Cal/Mag in veg and add some
Bud Candy and Bud Igniter to the solution a week before I'm going to flip the girls to flower. I put them into darkness for 36 hours before I change my light schedule to 12/12. Once I change my light schedule I stop using the Grow fertilizer and Bud Igniter and give them Bloom with the same
Hormex/Pro Tekt/Cal/Mag amendments until they've flipped into flower. After 3 weeks in visible flower I stop using
Bud Candy and continue with the amendments I've mentioned previously. 2 weeks before harvest I stop feeding them the amendments and 1 week before I feed with water only. I stop watering altogether a few days before harvest to help with curing and to allow the plant to use up whatever nutrient it still has. I use Roots Organic Original as my base soil and inoculate it with
MYKOS mycorrhizae to promote fast FBE formation(Fungal/Bacterial/Enzymatic).
Make sure you have good metering equipment to monitor EC/PPM and PH levels. They are VERY important if you want to be able to open up the root ball to maximum nutrient uptake over the entire spectrum. I like
BlueLab products but they may be a bit pricey for some. If you do go with
BlueLab I suggest you buy their Growers Toolbox. It includes both PPM/EC and PH meter along with all the calibration solutions you'll need to keep them accurate.
One last thing that most new growers tend to forget. ROOTS.
Make sure in the early development of the plant that you pay special attention to root health. Healthy roots will make your grow much easier and your plant much more pest and disease resistant. They will also allow your plant to grow bigger. Essentially the roots are the "mouth" of the plant so the bigger the mouth the bigger the plant! I use a product called
Voodoo Juice that seems to really help with early stage root enhancement. This along with the inoculant will setup the ideal conditions for maximum nutrient uptake! I use this from seedling to the week 3 in flower. There is another that is supposed to be similar to VJ but cheaper called Aqua Shield but I've never tried it so I can't vouch for its effectiveness.
Good Luck!